I have created another mod: Time Is The Key
I have played through it, and it is possible to complete in 60 to 70 minutes.
Don't waste time in fighting guards, some guards have a lot of health and they are skilled.
If you try to kill them normally, with SHIFT + UP Arrow keys, it is infinite because they never allow you to hit themseleves. Try to avoid them and run away...
It is a timing puzzle, for example you have to go through gates in time otherwise they close. I have attached the mod ZIP file here:
Please do tell me if you liked it or if you want some improvements in my future mods!

Enjoy with this mod!
